Improvement in operating the harness in looms



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FREDERICK rvIRAUB, OF PHILADELPHIA, PENNSYLVANIA;

Letters Patent No. 77,335, dated April 28, 1868.

IMPROVEMENT IN ossature THB HARNESS IN LooMs.

alge Srtrhnlenfrmt tu in .tlgrsr gates tteuttnt limiting mi nf the aime.

TO ALL WHOM IT MAY CONOERN z Be it known that I, FREDERICK` TRAUB, of the city andv county of Philadelphia, and State of Pennsylvania,

have invented -a new and us'eful Improvement in Shade-Motion for Weaving-Machines; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings, -making a part of this' specication, in which l Plate 1, Figure 1, is a side view of my shade-motion, showing the arrangement of the levers and gearing.

Plate 1, Figure 2, is an end view Vof the same, showing the arrangement of the cams.

Plate 1, Figure 3, is a top view of same.

Plate 2, Figure 4, is a detached view of lever, showing the application of one pf the cams.

Plate 2, Figures 5-rtof12, are detached views, showing the diiferent shapes of the cams used.

The object of my invention is to provide a shade-motion for weaving-machines, which, by its peculiar construction, as hereinafter described, I am enabled to do thc work more etfcctually and use less power.

Shade-motions produced by treadles connected-to harness-frames are objectionable on account of requiring more power to raise the trcadlc which overbalanees the `harness-frame. The'yarn, also, often slips and feeds t irregularly. This I fully overcome by my positive motion.

To enable others skilled in the art to make and use my invention, I will now proceed to describe its construction and operation, similar letters referring to similar parts. p

I make the ends ofthe base E and E', fig. 1, of cast iron, and in the shape as shown inthe drawings. The ends of base E and E' are connected by wooden or cast-iron beams, b, b', and b". On ltop of :Ev and E' is set a cast-iron upright-boned frame, B F, thetop part of said frame being forked from point P, as shown in fig. 3; On the frontend of frame B F are set four brackets, B R, B R', B R", and B R'", as shown in g. '2. Running through B R" and B R"' is a.V shaft, S, on which are set cast-iron cams 5, 6, 7, 8, 9, 10, 11, 12, 13. Inside ofthe forked' frame B F', on the end of shaft S, which passes through bracket B R", are a geared wheel, Gr W, ratchet R T,'and arm A R. v

On the shaft S', which passes through brackets B R and B R', are set cast-iron cams 5', 6', 7', 8', 9', 10', I

11', 12', 13', these being arranged opposite to cams on lower shaft S, shaft S' being worked by geared wheel G W', whichfgears into wheel Gr W.

Between the forked parts `of frame B F are hung wrought-iron levers 1, 2, 3, 4, 5, 6, 7,' 8, 9, made in the form as shown in fig. 4, plate 2, said levers working on a shaft, S T, and evenly balanced. i

On the inside of'E are hung wrought-iron Ievers 1', 2', 4', 5', 6', 7', 8', 9', said levers being arranged so ns to balance the harness-frame, (which is of the ordinaryconstruetion, and not shown in drawings,) and each lever is kept lindependent by having its own harness, and is regulated in proper position by the cam. Twentyfour ormore harness-frames can be used on this motion as well as two. I

When it is desired not to use more than three or four levers, the rest can be taken out and collars substituted in place of cams on shafts S and S. The harness can also be worked by a chain passing over a cylinder, and arranged on shafts S and S.

On top of ends E and E' is a shaft, T, running the full length of the machine, on the front en d of which a crank, C, is fixed, connected with the arm A by means of the rod D. When motion is given to the shaft T, the crank, C, raises and lowers the arm A R, which turns, through the ratchet R T, the shaft S, this shaft making one-quarterl of a revolution to one ofthe crank. The cams on the shaft S raise the levers 1, 2, 3, 4, Ste., as the points come' in'contact. The cams on shaft S', which are operated from shaft S, will depress the levers as the points come in contact. The harness-frame being 'connected to these levers by means of rods, is raised and lowered by means of the levers. The rods passing from front end of levers 1, 2, 3, 4, 82e., connect with the levers l', 2', 3', 4', 5', 6', die.

` The yarn passes from yarn-beam over shaft T, then through harness-frames over beam 6".

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is f In combination with the frame B F, the upper and lower series of levers, and the mechanism for operating the same, arranged as h erein setforth and described.

Witnesses: l

SAMUEL L. TAYLOR, CHARLES H. EVANS.

FREDERICK TRAUB. 

